[glade/popover] GladeWidget: Avoid inconsistent state during dispose

[Matthias Clasen <matthiasc src gnome org>]

commit 9af35fb10d431d8042b64fee22b26446bd6b961d
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Mar 1 23:02:45 2015 -0500

    GladeWidget: Avoid inconsistent state during dispose
    
    The dispose code was throwing away the list of properties
    without clearing out the quick-access hash table, so getters
    could still return already-freed property objects. This
    was causing the popover code to crash.

 gladeui/glade-widget.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/gladeui/glade-widget.c b/gladeui/glade-widget.c
index 079b48d..16f6421 100644
--- a/gladeui/glade-widget.c
+++ b/gladeui/glade-widget.c
@@ -1040,6 +1040,11 @@ glade_widget_dispose (GObject *object)
       g_list_free (widget->priv->properties);
       widget->priv->properties = NULL;
     }
+  if (widget->priv->props_hash)
+    {
+      g_hash_table_destroy (widget->priv->props_hash);
+      widget->priv->props_hash = NULL;
+    }
 
   glade_widget_set_object (widget, NULL);